Shovblijsto-hachihe



M. M. BOHEN SHOVELING MACHINE.

APPLICAHON FILED JULY 14. 1-919 Patented Sept. 21,1920.

3 SHEETS-SHEET I lNl ENTOR M. M. BOHEN.

SHOVEUNG MACHINE.

APPLICATION FILED yum-14.1919.

Patented Sept. 21, 1920.

3SHEETS-SHEET 2.

INVENTOM Maya K J75 AITORNEY iaIcrrAn'L screen, or oasrsa, WYOMING.

. SHOVELING-MACHINE.

Specification of Letters Patent. Patented Sept-21, 1920.

I Application'filed July 14, 1919. Serial No. 310,632.

. To all whom it may concern:

- Be it known that I, hlrcrranri M. BOI-IEN, a citizen of the United States of America, residing at Casper, county of Natrona State of Wyoming, have invented a new and useful Shoveling-Machine, of which the following is a specification.

This invention relates to improvements in shoveling machines.

The objects of the invention are: to provide a machine which is adapted, primarily, for removing themuck in tunnel excavation work, but which is also adapted for other kinds of shcvelingworl: suchas in the excavation of streets and roadways. Further, to provide a shoveling machine, comprising a. wheeled frame having a. power-operated endless carrier, a rotary shoveling device for shoveling material to the conveyer,and

cooperating rotary shoveling devices for shoveling material into the path of the firstmentioned shoveling d vice-whereby a continuous supply of material is supplied to the endless carrier, means being provided for automaticallymoving the machines forward as the material is cleared F art-her, to provide a shoveling machine in which the shoveling elements can be raised o t of operative position when it is desires, to move the machine without performing the shovelingoperation. These objects are accomplished by mechanism illustiated in the accompanying drawings. in which:

Figure 1, is a side elevation of the inn provedshoveling machine, the same being mounted on tracks. I

Fig. 2, is a plan view of the same.

Fig. 3, is a front end elevation thereof.

Fig. 4, is a plan view of the rear portion of the truck showing the mechanism carried thereby for moving the-machine forward.

and foreil'ecting the operation of the conveyer andof the. shoveling elements.

Fi 5, is a sectional view on the line 5-5 of Fig. 4:.

i 6. is a fragrnental sectional view illustratino the manner of raising the forward end of the machine. above the ground.

, Fig.7, is a fragmented sectional view on the line 7- of Fig. 2 and Fig. 8 is side view of a portion of one of the shovel arms. Referring to the accompanying d aw fings: The numeral 1 designates a truck which supports the operating: mechanism of the machine. and which comprises-s1 de members 2,;vhich are preferably channel-irons,

connected by cross bar 3, the side members 2, being mounted on wheels 4, the axles of which are rotatably journaled in suitable hearings on the under edges of the side meml s. The axles are provided, on one side o the truck, with sprocket wheels 5, which are connected by a chain 6. The truck carries its own motor, which may be either of the air or electric type, as conditions may in he necessary, the motor forming no part of the present invention. As illustrated, lli-WQVET, an electric motor 7, of common type, is employed, and this motor is mounted on intermediate cross bar 3, adjacent to he ear axle. The motor shaft has a pinion S. in mesh with a gear wheel 9, on a shaft 10, which is supported at one end in bear- ?nc's on a standard 11 secured upon the adiacent side frame 2; and at its other end in hearings on standard 12 secured upon the same intermediate cross bars which support the motor. A second shaft 13, is mounted in hea ngs on the standards 11 and 12 and is t ed with a gear wheel 14, in mesh with a gear wheel 15, on the shaft 10, by h ch power from the motor is transmitted i'o he shaft 13. The end of' the shaft 13, a. the .qear wheel 14, is provided with s1 'oclret wheel 16, and the opposite end of the shaft 10, from the gear wheel 1.5, is

provided with a sprocket wheel 17, the func tion of these wheels being hereinafter set f rth. The rear axle of the truck has rigi diy secured thereon, a ratchet wheel 18, which is engaged by a pawl 19, on a lever 20, the lower end of which is pivotally mounted on the said axle. The upper end of the lever 20 is pivotally a tached to one end of a connecting rod 21, the opposite end of which connects with an eccentric 22, mounted on the shaft 13. By reference to Figs. 4: and 5. it will be seen that the eccentric reciprocatcs the rod 21, which oscillates the lever 20, whose pawl 19'eneages and intermittently rotates the ratchet wheel 18, by which the rear axle isrotated, and this rotation is i mitted to the forward axle by the of the truck, and their upper ends are are secured to a cross bar 26, the ends of which are bolted to side plates 27, which are 7 connected to the side members of the truck bybars '28. The forward ends of the side plates'27, are provided with rollers 29,

' which rest on the ground and thus cooperate with the bars 28 in supporting theforward ends of the inclined bars. To the forward ends o fithe plates 27 are also secured the lower ends of spaced bars 30 and 31, which are arcs of a circle whose center is theaxis of the shaft 13,- a'nd the iipper ends of these bars'are bolted to the forward ends of hornorm l side bars32, the opposite ends of which are bolted to the uprights 24, and intermediate of the ends," the bars 32 are bolted to the inclinedbars 2'3 and also to the upper ends of the uprights 25, as shown by Fig. 1. Each bar 30 is preferably an angle bar, and each bar 31 is preferably a T bar, and the T bars '31, are connected at their upper ends by a cross bar 33. The bars 30 andl31, on each side of the machine, form slideways for bearing boxes 34, to be hereinafter described. Spaced from each. angle bar 30, is a T bar 35, which with the angle bars 30, form slideways for bearing box-s36, which are in axial alinement while the axes ofthe boxes 34'are parallel and at right angles to those of the boxes The boxes 34 are formed withreduced portions 37 which fit in between the opposing edges of the bars 30 and 31, and the boxes 36 also have reduced portions which fit in between the opposing edges of the bars 30 and 35, and each box 34 is rigidly connected to the adjacent box 36 by an angle'plate 38, the

' wings of which are bolted respectively to the two bearing boxes, each wing overlapping the opposing edges of one of the slideways seen that the boxes 34 and 39 are connected to the box 36 on each side of the machine and, therefore, when the boxes 36 are raised they raise the boxes 34 and 39' with them. A shaft 41 is mounted in the boxes 36 and has mounted on each end a bevel gear 42, and a sprocket wheel 43 is also mounted on this shaft, which is connected by a sprocket chain 44, with the sprocket wheel 16 on the shaft 13 4i rotary shovel is centrally mounted 1 on the shaft 41, and this shovel comprises a hub 45,'having radial arms 46, each of which is made up of two sections connected by a hinge joint47, which permits the outer sec-' .tion to swing on the inner section in a counter direction only to its rotary movement, but the outer section is normally held against swinging movementby a spring 48, having a central coil which surrounds the pivot bolt ofthe hinge, the end portions of the spring, which are under tension, bearing against the respective sections of the arm, as shown by Fig. 8. The outer end of each arm has a suitable shovel 49 bolted thereon, and these shovels are adapted to deliver'material to anen'dless conveyer 50, whichis mounted on drums51, supported on shafts 52,- which are journale'd in bearings 53, secured on opposite ends of the inclined bars23; the conveyor comprising a belt. having suitable transversely arranged buckets 54. The upper shaft 52, ofthe conveyer, has a"s'p'rocliet wheel 55, on one end,

which is connected by a sprocket chain 56, i

with the sprocket wheel 17, o'nthe power driven shaft 10. A shaft 57 is mounted in the axially-alined bearing boxes 34 and 39 on each side the ,inachine, and these shafts are provided with bevel gears 58, which mesh with the bevel gears 42 on the shaft 41. The outer ends of these shafts are provided with rotary elements in the nature of picks, each of whichcomprises a hub 59, an'd'radial arms 60, which are identical in construction with the arms'46, of the rotary shovel, each arm comprising two sections having ahinge connection 61, and springs 62 for normally holding the outer sections against. swinging movement. The router endsof the arms .60 are provided with suitable picks63, which are adapted tomove in'aterial into the path of the rotary shovel which catches the said material and throws it on to the conveyor. The rotary shovel, without the cooperation of the rotary picks would only'clear a path of limited width, but with the cooperationof the picks not only a much wider pathis cleared, but loose material is continuously thrown into the path of the'shovelawhich are thus kept supplied. The springs 48 and 62 prevent the outer sections of the respective arms 46 and 60 from rocking on their hinges, under ordinary resistance, but when either the shovels or picks encounter more than ordinary resistance, or resistance sufficient to bend or break the arms f they were made of a single section, the springs permit the outer sections to swing back and escapethe v bstr ucv tions causing the excess resistance, thus pre- V venting injury to the arms. t

From the foregoing descr1ption,'it will be seen that power, from the power-driven shaft :13, is transmitted tothe shaft 41 of the rotary shovel, through the medium of the sprocket chain ea, which connects the sprocket wheels 16, on the shaft 13, with the sprocket wheel 43, on the shaft 4:1, thereby rotating the shaft with its shovels; and the bevel gears 42, on the end of the shaft 41, meshing with. the gears 58, on the shafts 5? rotate the s id shafts with their picxs, the conveyor being driven to chain 56, which connects the sprocket wheel 17,. on the power shaft 10, with the sprocket wheel on the upper conveyer shaft 52- lVhen it is desi ed to propel the machine, without utilising the shoveling m chanism, the said irechanism is raised out of operative posiin the following manner: To each bearbox 3-6, is secured the lower end of a chain, or other flexible connection 64, the upper ends of which connected to the forward end of a lever 65, which is mounted on a shaft 66, which is supported in bearings 67, secured upon the side bars 32. The handle end of this lever is bent to lie adjacent to one of the side bars 32 so as to be in easy reach of an attendant, and when the handle end of the lever is pressed down, the chains 64 are drawn upon, and the shoveling elements are raised out of opera tive position and are held by the engagement ofthe lever with a toothed rack 68, whichiis ecured to the adjacent side bar 82. It is ometimes necessary to raise the front end of the machine above the ground, and this is accomplished in the following manner: T he front axle of the truck is supported in bearings 69, which rest against the under edges of the sideframes 2, of the truck, but are not bolted hereto. Each of these hearings is bolted to the ends of a U-bolt 76, as shown in Fig. 6, which extends loosely through bolt holes in the flange portion 2A of the side frame 2. Upon the axle 4A adjoining the side frames, are pivotally mounted the lower ends of levers 7-1, and the lower end portions of these levers are formed with cams 72, which engage rollers 73, on the side frames 2. When the levers 71 are moved in the direction of the arrow, Fig. 6, the-cams 72 engagethe rollers 73, and thereby lift the front end of the truck, the side frames 2, sliding on the U-bolts, which are secured to the bearings 69, which support the axle 4A. Thus the front end of the truck together with the shoveling elements is raised, while the front truck wheels remain upon the tracks.

Having described my invention, what I claim as new, and desire to secure by Letters Patent is:

I l, Ina shoveling machine of the character described, the combination with a truclrhaving a motor thereon, of an inclined frame supported on saidtruck, an endless .conveyer mounted on said inclined ing means, and being connected with the shoveling means to be raised or lowered therewith, and means for raising or lowering the same and a pawl and ratchet mechanism connected operated by the motor, for moving the truck forward.

2. In a shoveling machine, the combination with a truck having a motor thereon, of a frame supported on the truck having op posits-pairs of upright slideways on its forward end, the slideways of each pair facing at righ angles to each other, transversely alined bearing boxes mounted in correspondingly facing slideways of the opposite pairs of slideways, a shaft mounted in said boxes, having a bevel gear on each end, a pair of longitudinally alined bearing boxes on each side of the machine, each pair being rigidly connected with the adjacent box of the transversely alined pair, a shaft in each pair of longitudinally alined boxes, said shafts having bevel gears in mesh with the gears on the transverse shaft, one bearing box of each pair of longitudinally alined boxes beingmounted in the remaining slideway of the adjacent pair of slideways, rotatable shoveli g means on all of said shafts, power transmitting means connecting the motor and the s: transverse shaft, an endless conveyor supported on the truck and operated by the motor, and adapted to receive material from the shoveling means, a pawl and ratchet mechanism operated by the motor and connected with one of the truck axles for moving the truclr forward, and means for raising theshovelin mechanism out of operative position.

in a shoveling machine, a truck hava motor thereon, an endless conveyer supported on the truck and operated by the motor, a rotary shovel comprising a transve e shaft and power transmitting means co e ng the same with the motor, a hub on saiu shaft having radial farms, and shovels on the outer ends of said arms for delivering material to the conveyor; gears on the ends of said shaft, side shifts at right angles to the transverse shaft, having gear in' mesh with the gears on the trans verse shaft, hubs on said shafts having radial arms, and members on the outer ends of said arms for delivering material to the rotary shovel, slidable bearing boxes for all of said shafts, means rigidly connecting the boxes of each side shaft vwith theadjacent box of "the transverse shaft, upright slideways for the boxes of the transverse shaft, and for one box of each side shaft, a lever supported on the truck and chains connectii'ig one end of the same with the boXes on the transverse shaft, thereby to raise the said shoveling mechanisms out of operative position, and means operated by .the motor and connected with one of the '10 truck afxles for intermittently moving'said :truclr forward.

4. In a shoveling machine, the combination with an endless conveyor and means for V ope atiiig the same of rotatable shoveling means operated by the conveyer operating means, for supplying saidrconveyer, comprising a transverse shaft, slidable bearings therefor, upright slidevvays for said bear ings, and means for raising said shaft and V its. bearh'igs ins-aid slid eivaiys, a hub on the shaft having radial} arms, each comprising two sections connected by a hinge, springs for' ho'l ding the outer sections under a yieldingl tension, and shovel elements on the ends 7 2 5 of the oiiter sections, side shafts at right angles to the transverse shaft,each of which has bearings rigidly conne; ted with the adj aceht bearing of the trahsverse shaft, and upright slideways for said bearings, gearing ,connectingthe ends of the transverse shaft with the side shafts, hubs on said shafts having radial arms comprising two sections' comfected by a hinge, and springs for'holdingthe outer sections under yieldj ing tension, said outer sections having picks V for supplying material to the shovel elements, a pawl and ratchet mechanism connected with one of thetruck axles, and means operatedby the conveyor operatirig 40 means for actuating the said pawl.

5'. In a shoveling machine, the combina tion with a truck, motor thereon, and an endless conveyer operated by said motor of oppositely arrafiged hpright slideways adjaeent the for'waid end of said conveyer,

' for operating all of said shafts, means for raising said'shovel members out of operative position, and a pawl and ra chet mechanism operated by the motor, for intermittently moving said truck.

'65 I 6. In a shoveling machine, a truck, having a motor thereon, drums supported on said truck, an endless conveyer supported on the drums, gearing and a chain and sprocket connection between said motor and one of said drums, a transverse shaft, rotatable shovels thereon for supplying said conveyer, a motor-driven shaft, a sprocket and chain connection between said motor driven shaft and said transverse shaft, shafts on opposite sides of the machine and gearing connecting them with the ends of the transverse shaft, rotatable shovels on the side shafts for supplying material to the rotatable shovels on the transverse shaft, rigidly connected bearings for each side shaft and the adjacent bearing of the transverse shaft, upright slidewa'ys for said bearings, means for raising said bearings in unison to lift the shovels out of operative position, and means for llIIl-,

iting the downward movement of said bearm e.

In a shoveling machine, the combination with a truck, an endless conveyer there'- on, a motor-carried by the'truck'for operating said conveyer, and rotatable shovel means operated by said motor for supplying material to said co'nveyeryof means for raising the forward end of said truck frame away frofn the forward axle, comprising levers mounted on the said axle, having cam portions th'ereor'i rollers on the truck frame which are engaged by said cam portions when the levers are swung in one direction,

and guides secured upon said axle for side shovels, gearing connecting them with r the first mentioned shovel, and gearing and a chain and sprocket connection between the said motor and the first mentioned shovel, of means for moving said truck forward, comprising a lratchet wheel rigidly secured, on one of the truck axles, a lever pivotally mounted on said axle having a pawl to engage said ratchet wheel an eccentric, operated by said motor, and a rod connected at one efidto said eccentric and at its other end to the pawl carrying lever.

9. In a shoveling machine, a truck having a motor thereon, a frame supported o'nsaid truck, an endless conveyer on said frame and a chain and sprocket connection between the motor and the conveyer, a transverse shaft having rotary shovels for supplying material to the'conveyer, bearings for said shaft and upright slidewa s for said bearings, a shaftand gearing connecting the same with the motor shaft, a chain and sprocket connection between the motor driven shaft and the transverse shovel carrying shaft, said slideways being arcs Whose center is the axis the said motor driven shaft, shafts at right angles to'the transverse shaft, having rotary shovel elements for supplying material to the first mentioned sho\"els,bearings for the latter shafts, and slideways for said bearings having the same curvature as the first mentioned slide- Ways, the bearings on each side of the machine being rigidly connected, a lever supported on said truck and a chain connected therewith, and with the transverse shaft bearings, for raising and lowering said bearings, and a rack for engaging said lever. 15 In testimony whereof I afliX my signature in presence of two Witnesses.

MICHAEL M. BOHEN.

l/Vitnesses:

MARION N. WHEELER, MARION P. WHEELER. 

